Question detail
In the nuclear model of the atom, where is most of the atom's mass concentrated?
Try the question, check the answer, then read the explanation to understand the curriculum point.
At a glance
MCQ
Type
practice
Style
Topic
Atoms and isotopes
Question
- A. In the electron shells.
- B. In the nucleus.
- C. In the space between electrons.
- D. Evenly throughout the atom.
Answer
In the nucleus.
Explanation
The nuclear model states that nearly all the mass of an atom is concentrated in the nucleus, which contains protons and neutrons.
Common mistake
Confusing Atomic Models
Students often confuse the characteristics of the plum pudding model with those of the nuclear model, mistakenly attributing the presence of electrons in the nucleus.
To fix this, students should focus on the key features of each model: the plum pudding model describes a positively charged sphere with electrons embedded, while the nuclear model has a small, dense nucleus containing protons and neutrons, with electrons orbiting around it.
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